Annual mean
Annual mean of daily highs
Annual mean of daily lows
Alto CDP, Wisconsin
Official LSAD Designation: Alto CDP • Census GEOID: 5501500
• Fond du Lac County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Alto CDP.
Reference Weather Station: MARKESAN, WI US (ID: USC00475096)
• Located 10.6 miles from community center
• Elevation: 262.4 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 25.8° | 8.9° | 17.3° | 1.38" |
| February | 29.6° | 10.4° | 20.0° | 1.39" |
| March | 41.9° | 21.4° | 31.6° | 2.00" |
| April | 55.6° | 32.9° | 44.2° | 3.45" |
| May | 68.2° | 45.0° | 56.6° | 4.29" |
| June | 77.6° | 55.4° | 66.5° | 4.58" |
| July | 81.8° | 58.7° | 70.3° | 4.29" |
| August | 79.9° | 56.2° | 68.1° | 4.15" |
| September | 72.4° | 48.4° | 60.4° | 3.27" |
| October | 59.4° | 36.9° | 48.2° | 2.93" |
| November | 43.9° | 26.0° | 34.9° | 2.23" |
| December | 31.6° | 15.2° | 23.4° | 1.65" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station MARKESAN, WI US (ID: USC00475096) • 10.6 miles from community center .
This is the same reference station used for monthly normals.
Source: NOAA NCEI Global Summary of the Year.
Annual temperature data table (°F)
| Year | Annual mean (°F) | Annual mean of daily highs (°F) | Annual mean of daily lows (°F) |
|---|---|---|---|
| 2010 | 45.8 | 56.5 | 35.2 |
| 2011 | 44.9 | 55.1 | 34.8 |
| 2012 | 51.0 | 61.4 | 40.5 |
| 2013 | 43.9 | 54.1 | 33.7 |
| 2014 | 41.4 | 52.1 | 30.7 |
| 2015 | 46.1 | 56.5 | 35.7 |
| 2016 | 48.3 | 59.2 | 37.3 |
| 2017 | 45.6 | 55.8 | 35.5 |
| 2018 | 44.7 | 54.9 | 34.5 |
| 2019 | 44.5 | 54.3 | 34.6 |
| 2020 | Unavailable | Unavailable | 36.2 |
| 2021 | 46.8 | 57.3 | 36.3 |
| 2022 | 44.0 | 54.5 | 33.5 |
| 2023 | 47.2 | 57.7 | 36.8 |
| 2024 | 48.2 | 58.9 | 37.4 |
| 2025 | 45.3 | 56.2 | 34.3 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.